MathQuarryCalculators

Primes / Is 387 prime?

Is 387 a Prime Number?

No387 = 3^2 x 43

387 is NOT prime: 3 × 129 = 387. That makes 3 a genuine divisor of 387 beyond 1 and 387 itself. Fully broken down, 387 = 3^2 × 43, for 6 divisors total. 387 sits between primes 383 and 389, 4 below and 2 above. 387: 3, 9 divide 387 evenly, checked against 2-12. 387 is odd, digit sum 18 for 387, digital root 9 for 387. 387 has 4 primes within 10 of 387.

Factors
1, 3, 9, 43, 129, 387
Number of factors
6
Prime?
No
Prime factorization
3^2 x 43
Even or odd
Odd
Square
149769
Cube
57960603
Binary
110000011
Hexadecimal
183
Roman numeral
CCCLXXXVII
Perfect square?
No
Perfect cube?
No
Perfect number?
No
Triangular number?
No
Fibonacci number?
No
Full facts for 387 →Factors of 387 →